[Torsades de Pointes: a cause of syncope in sinus node dysfunction]. / Torsade de pointes: una causa de síncope en disfunción del nodo sinusal.
Arch Inst Cardiol Mex
; 68(6): 498-505, 1998.
Article
em Es
| MEDLINE
| ID: mdl-10365226
Torsade de Pointes (TdP) is an atypical ventricular tachycardia that occurs in the setting of QT interval prolongation which may be an inherited or acquired abnormality. TdP is a recognized complication of bradyarrhythmias, specifically atrioventricular block. However, sinus node dysfunction is a rare cause of syncope associated with TdP. Experimental studies have suggested that the acquired long QTU interval and TdP may be due to bradycardia or pause-dependent early after depolarizations that give rise to triggered activity. This report describes a patient with sinus bradycardia and intermittent AV nodal rhythm induced long QT interval and repetitive syncope related to TdP and successfully treated with temporal and long-term pacing.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nó Sinoatrial
/
Síncope
/
Torsades de Pointes
Tipo de estudo:
Etiology_studies
Limite:
Aged
/
Female
/
Humans
Idioma:
Es
Revista:
Arch Inst Cardiol Mex
Ano de publicação:
1998
Tipo de documento:
Article
País de publicação:
México